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์Šคํ”„๋ง ์–ด๋…ธํ…Œ์ด์…˜ ์‚ฌ์ „

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Spring Framework์—์„œ ์ œ๊ณตํ•˜๋Š” ์–ด๋…ธํ…Œ์ด์…˜์œผ๋กœ, ํ•ด๋‹น ํ•„๋“œ, ๋ฉ”์„œ๋“œ ํŒŒ๋ผ๋ฏธํ„ฐ, ๋˜๋Š” ๋ฉ”์„œ๋“œ ๋ฐ˜ํ™˜ ๊ฐ’์ด null์ด ๋  ์ˆ˜ ์—†์Œ์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. ์ด ์–ด๋…ธํ…Œ์ด์…˜์€ ์ฃผ๋กœ ์ฝ”๋“œ์˜ ๊ฐ€๋…์„ฑ์„ ๋†’์ด๊ณ , null ๊ฐ’์œผ๋กœ ์ธํ•œ ์ž ์žฌ์ ์ธ ์˜ค๋ฅ˜๋ฅผ ๋ฐฉ์ง€ํ•˜๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค.